Title:
ATOMIC MAGNETOMETER AND MAGNETIC FIELD IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/041701
Kind Code:
A1
Abstract:
An atomic magnetometer (100) and a magnetic field imaging system (200). A first wavelength laser and a second wavelength laser are formed by a laser light source (10) and a frequency multiplication module (20). The optical power of the first wavelength laser is adjusted by means of an optical attenuation module (30), so as to achieve non-magnetic optical heating of an atomic gas chamber (510), and the attenuation amount is adjusted for temperature control. The second wavelength laser enters the atomic gas chamber (510), so as to achieve magnetic field detection. Thus, the atomic magnetometer (100) can achieve non-magnetic heating and atomic pump detection without coupling of a heating laser and a pump laser, thereby reducing the complexity of an optical path. The laser light source (10) in the magnetic field imaging system (200) is connected to a plurality of atomic magnetometer probes (206). By means of position information of a plurality of atomic magnetometer probes (206) and detected magnetic field information, the magnetic field position can be accurately positioned, so as to achieve multi-dimensional magnetic field space reconstruction.
Inventors:
FENG YANYING (CN)
LI XIAOJIE (CN)
LI XIAOJIE (CN)
Application Number:
PCT/CN2021/081967
Publication Date:
March 03, 2022
Filing Date:
March 22, 2021
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
G01R33/032; A61B5/00
Foreign References:
| CN111983526A | 2020-11-24 | |||
| CN107062600A | 2017-08-18 | |||
| CN111048992A | 2020-04-21 | |||
| CN109827559A | 2019-05-31 | |||
| CN108209876A | 2018-06-29 | |||
| CN103901924A | 2014-07-02 | |||
| US20200057116A1 | 2020-02-20 | |||
| CN109738837A | 2019-05-10 |
Other References:
MHASKAR R.; KNAPPE S.; KITCHING J.: "A low-power, high-sensitivity micromachined optical magnetometer", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 101, no. 24, 10 December 2012 (2012-12-10), 2 Huntington Quadrangle, Melville, NY 11747, pages 241105 - 241105-4, XP012168336, ISSN: 0003-6951, DOI: 10.1063/1.4770361
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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